Synthetic aperture focusing technique is one of effective ways to widely improve space resolution power of images in digital imaging processing and is mainly used in the field of radar at present 合成孔径技术是数字成像处理中用于大幅度改善图像空间分辨率的一种有效手段。目前，合成孔径技术的最主要应用是在雷达领域。
In the last ten years , research on auto - focusing techniques has been focused on methods related to digital image processing on account of the maturing of digital imaging devices , and a lot of achievements have been accomplished 随着数字成像器件的实用化，近十年来人们对自动对焦技术的研究集中在数字图像处理的方法上，并取得了大量成果。
The rapid growth of digital imagery , the increasingly easy access to digital media , and the increasingly powerful tools available for manipulating digital media have made media security a very important issue 数字成像技术的飞速发展、数字媒体的日益容易获取及功能日益强大的、可以用来处理数字媒体的软件工具使得媒体的安全成为一个很重要的课题。
Auto - focus is one of the most important technologies in digital imaging system , so it ' s crucial to many application areas where involve with imaging system , such as daily life , science research , military affairs 自动对焦技术是数字成像系统的关键技术之一，因此它无论是在日常生活、科学研究、军事应用等等只要涉及到成像系统的地方都有重要应用。
Higher - speed dsps extend possibilities to design more reliable , functional and compact radar signal processing systems . this thesis presents a high - speed dsp system based on tms320c6701 dsp to real - time implement azimuth compression 本论文结合电子所机载合成孔径雷达实时数字成像处理器工程项目，设计开发了采用tic67dsp作为核心处理部件进行方位处理的高速信号处理系统。
We analysis the factor has effect on the precision of locating in parallax . on basis of that , we present method to correct the parameters in parallax and to realize parallax by rolling the workpiece instead of moving workpiece 为此，本课题首先通过射线数字成像来实现视差法，并且详细分析了视差法中影响定位精度的各个因素，找出了误差的来源及各种误差对定位精度的影响程度。
Significance of building pacs system between hospitals and telemedicine service are introduced at first and then some foundational knowledge of several conventional radiation equipments ( include cr , ct , mr etc ) and basical conception of dicom are dealt with 论文首先综述了建立医院和医院之间pacs系统的意义及国内外远程医疗服务系统的现状，回顾了几种放射成象设备( cr , ct , mr等)的基础知识、常用术语和医学数字成像和通信标准( dicom )的发展历史。
At first , this article introduces the digital imaging principle of the sar image , deduces the mathematic expression of the range - doppler model . on the base of analysis the r - d model function in image location , we ascertained the direct location based of the sar assistant data and verified the algorithm 本文首先介绍了sar数字成像原理，详细推导了距离?多普勒( r - d )模型的数学表达式，在分析了r - d模型在图像定位中作用的基础上，系统给出了基于sar辅助数据直接定位的原理与方法，并对算法进行了验证。
Digital imaging and communication in medicine ( dicom ) standard offered a medical image communicating interface standard for different medical diagnostic and therapeutical instruments manufactured by different vendors . dicom has become the international industrial standard in the field of hospital imaging and has been widely used in a lot of developed countries 医学数字成像与通讯( digitalimagingandcommunicationinmedicine ， dicom )标准为各国不同厂商生产的医疗诊断和治疗设备提供了医学图像数字通信接口的标准，使得因此而产生的信息资源难以互相使用的问题的解决成为可能。
Pacs ( picture arching and communication systems ) has been developing with the progress in digital photography , computer technology and internet techniques . it has been applied in radiographic department or even larger medical images information management system in order to solve the problems of image collection , demonstration , memory , transmission and management produced by ct , mri , pet , us and so on 前言pacs ( picturearchivingandcommunicationsystems )是随着数字成像技术、计算机技术和网络技术的进步迅速发展起来的，应用于医院放射科或医院及更大范围的医学图像信息管理系统，旨在全面解决医院医疗设备如ct 、 mri 、 pet 、超声等产生的图像的采集、显示、储存、传送和管理。
